Key-fastening device.



W. R. GONOIE.

KEY FASTENING DEVICE.

APPLIOATION FILED JULY15,1913.

Patented July 21, 1914,

UNITED STAES PATENT ornion.

WILLIAM RALPH ooivcin, or SPOKA NE,VWASHINGTON.

KEY-FASTENING DEVICE.

Specification of Letters Patent, Patented July 21, 1914. Applicationfiled July 15,1913. Serial No. 779,134.

To all whom it may concern Be it known that I, VVILLAIABIQ RALPH "00mm,a citizen of the United States, re-

' readily fitted to a door lock in order to make it impossible to pickthe same.

A second object is to provide an attachment which shall be. suficientlycheap to warrant its use in connection with cheap locks to prevent thembeing picked.

A final object of my invention resides in the particular arrangement andcombinasimilar to Fig. 1 with the mechanism so ar-,

ranged that it is impossible to turn the key.

'Fig. 8 is a side elevation of the device in the position shown in Fig.2. Fig. i is a section'on the line H of Fig. 2. Fig. 5 is a detailperspective view of the operating member of my device. Fig. 6 is a viewin side elevation of the operating mechanism before it has beenassembled. I

In the-separate views the same part is designated by the same referencecharacter.

Referring more particularly to the drawing, 1 is a plate which isfastened to the door 2 by means of screws such as 3'3. The plate 1 isprovided with a bore 4 which is countersunk as shown at 5. I provide aspindle 6 which extends through the plate 1, said spindle being providedwith a cross portion 7 and a collar 8 which are adapted to fit in thebore 4E and the countersunk portion 5 thereof, respectively.- K For usein 45 connection with the spindle 6, I provide an eccentric 9 which isprovided with a rim or collar 10 and connected to a sleeve 11 which hasa nut 12 provided with a milled edge, said nut being at theend of saidsleeve 11 opposite said eccentric. It will be seen also that theeccentric 9 is provided with a shoulder 13, the eccentric 9 and sleeve11 and nut 12 being made in one piece and being provided with a bore 14Lextending therethrough, the shoulder 13 surrounding one end of saidbore. It will be understood moreover, that the bore 14 isadapte'd to fitover the reduced end of the spindle 6. It

will also be seen that the spindle 6 andsleeve 11 are provided withcomplementary holes 15 and 15 adapted to receive a screw 16 by which thetwo may be fastened together.

The locking portion proper is'designated as 17 and comprise a shank 18,the upper portion of which is bent outwardly away from the face of thedoor as shown at 19 and, near it upper end, is provided with a pair ofshoulders such as 20-20, the portion 18 being extended upwardly beyondthe shoulders 20 to form a catch 21. At the end opposite the catch 21the member 17 is enlarged to form a portion 22 which is provided with aslot 23 of the same diameter as the eccentric 9.

In assembling mydevice it will be under stood that the spindle 6 ispassed through the bore 4 in such a direction that the col lar 8 fits inthe countersunk portion 5. The end 22 of the locking member 17 is thenpassed over the spindle 6 and the eccentric 9 and sleeve 11 passed overthe spindle 6 'in such a manner that the collar 13 comes in contact withthe end of the cross portion 7. The screw 16 is then screwed into theholes 15 and 15 whereupon the device is ready to be assembled on thedoor. It will be seen that whenv the parts have been assembled as justdescribed, all of the parts are held firmly but rotatably to the plate 1on account ofthe engagement between the plate and the collar 8 on oneside and between the plate and the eccentric 9 on the other side, whilethe member 17 is held by the collar 10 which projects beyond the edgesof the slot 23, so as to hold the portion 22 against the outer face ofthe plate 1.

In using my device the key 25 is first turned so asto lock the door towhich this lock is connected and the nut 12 is turned so that the majorportion of the eccentric 9 is below the axis of the spindle 6. Themember 17 is then turned up into the position shown in full lines inFig. 2 whereupon the key is turned in the position shown in Fig. 1, themember 17 being of such length that it will just pass into the hole inthe end of the key when the parts are in the posibrought up, and thisforces the member 17 upwardly so that the end 21 projects through thekey. It will thus be seen that when the parts arein the position shownin Figs. 2 and 3, it will be absolutely impossible to turn the key bythe use of nippers no matter how strong a. person on the outside of thedoor may be, as the slightest movement to the left or right of the keyhandle will cause it to strike the shoulder 20 thus preventing furthermovement. I

WVhen it is wished to throw the device entirely out of operation, forinstance during the day, the piece 22 may be swung into tihe positionshown by the dotted lines in From the foregoing it will be seen that Ihave provided a cheap and efficient device which is adapted to beused inconnection with the ordinary spring lock and which will absolutelyprevent them from being picked.

It will be understood also that while I have shown and described thepreferred form of my invention, various modifications thereof may bemade without departing from the spirit of my invention and that Icontemplate all such modifications as are mechanically equivalent to thearrangement shown and described herein. In particular, it should beunderstood that in place of the specific locking member 17 shown anddescribed herein, I may substitute therefor a ring member surroundingthe eccentric 9 and having two spring wires extending up- I wardlytherefrom and bentoutwardly at their upper ends so that the equivalentofthe locking shoulders 20 shall be formedabove the key handle instead ofbelow it.

Having thus described my invention, what I claim is 1. A key fasteningdevice comprising in combination, a plate adapted to be fastened to adoor and provided with a countersunk bore therethrough, a spmdleinserted in said bore and provided with a shoulder occupyposite saidcountersunk portion, an apertured eccentric fastened to sald spindlewhereit pro ects from the face of said plate,

and a key fastening member rot-atively en- 1 m said countersunk Iaortion said s'iindle a pro ecting beyond the face of said plate opand akey fastening member relatively engaging said eccentric intermediatesaid plate and said collar.

3. A key fastening device comprising in combination, a plate adapted tobe fastened to a door and provided with a countersunk bore therethrough,a spindle inserted in said bore and provided with a shoulder occupy-111g said countersunk portion, said spindle projecting beyond the faceof said plate opposite said countersunk portion, an apertured eccentricfastened to said spindle where it projects from the face of said plate,a key fastening member rotatively engaging said eccentric, saideccentric being provided with a collar engaging the outer surface ofsaid key fastening element and holding the same against the outer faceof said plate.

t. A key fastening device comprising in combination, a plate adapted tobe fastened to a door provided with a countersunk bore therethrough, aspindle inserted in said bore and having a collar occupying thecountersunk here, said spindle projecting beyond the face of said plateon the side opposite the countersunk bore, a. key fastening elementplaced over said spindle and provided with an elongated slot therein,and an operating structure attached to the projecting portion of saidspindle, said structure comprising an eccentric having a diameter equalto' the width of said slot and inserted therein, a

sleeve rigid with said eccentric, and a nut rigid with said sleeve, saideccentric and sleeve being perforated to receive the projecting portionof said spindle, said eccentric having a collar of greater diameter thanthe slot in said fastening element, said collar projecting over the faceof said element and holding said element against the face of said plate.

5. A device of the class described comarisin in combination a memberadanted :3 7 L to engage a key to prevent the same. from turning, and amember adapted to throw said first mentioned member into locking po-.sition, said first mentioned member having pivotal engagement with saidsecond mentioned member.

6. A device of the class described comprisiug in combination, a memberadapted to engage a key to prevent the same from being turned, and arotatively mounted eccentric for operating said member, said memberbeingpivotally connected to said QCCGIlf tric.

In testimony whereof I affix my signature in the presence of twowitnesses.

WILLIAM RALPH CONCIE. Vi itnesses L. M. WINCH-mow, J. E. BARR.

Copies of this patent may be obtained for five cents each, byaddressing-the Commissioner of Patents, Washington, D. O."

